Answer:
A) Interest on a 4-month note is calculated as: $1,000 × 12% × 1/12.
Step-by-step explanation:
Each note is worth $1,000
Each note carries a 12% interest rate
Only one month has passed since the notes were issues, so the time = 1/12
Therefore the interest accrued from December 1 to December 31 = note value x note's interest x time = $1,000 x 12% x 1/12 = $10